What is Regional Diagnostics, LLC's NPI number?

Regional Diagnostics, LLC's National Provider Identifier (NPI) is 1003804311, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What type of organization is Regional Diagnostics, LLC?

Regional Diagnostics, LLC is classified in the NPPES registry as Radiology Clinic/Center (Ambulatory Health Care Facilities).

Where is Regional Diagnostics, LLC located?

Regional Diagnostics, LLC's practice location on file with NPPES is 1228 W Belmont Ave, Chicago, IL 60657-3207.

What is Regional Diagnostics, LLC's phone number?

The practice phone number listed in the NPPES registry for Regional Diagnostics, LLC is (773) 248-7100.

Who is the authorized official for Regional Diagnostics, LLC?

The authorized official listed on Regional Diagnostics, LLC's NPPES record is Ron Clark, C.f.o.. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.

Is Regional Diagnostics, LLC's NPI active?

Yes — Regional Diagnostics, LLC's NPI (1003804311) is active in the NPPES registry as of the last update on 2020-08-22.

OrganizationActive

Regional Diagnostics, LLC

NPI 1003804311 · Radiology Clinic/Center · Chicago, IL

Regional Diagnostics, LLC is a Radiology Clinic/Center organization in Chicago, IL (NPI 1003804311).

Provider details

NPI number: 1003804311
Entity type: Organization
Primary specialty: Radiology Clinic/CenterAmbulatory Health Care Facilities
Organization subpart: No
Authorized official: Ron Clark, C.f.o.(216) 464-8484

Practice location

1228 W Belmont Ave

Chicago, IL 60657-3207

Phone: (773) 248-7100

Fax: (773) 248-1210

Street-level locationGet directions

More IL providers

Mailing address

4400 Renaissance Pkwy

Warrensville Hts, OH 44128-5763

Specialties & taxonomies

Radiology Clinic/CenterPrimary261QR0200X
Ambulatory Health Care Facilities

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
21 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Enumerated: 2005-10-11
Last updated: 2020-08-22

Frequently asked questions

What is Regional Diagnostics, LLC's NPI number?: Regional Diagnostics, LLC's National Provider Identifier (NPI) is 1003804311, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What type of organization is Regional Diagnostics, LLC?: Regional Diagnostics, LLC is classified in the NPPES registry as Radiology Clinic/Center (Ambulatory Health Care Facilities).
Where is Regional Diagnostics, LLC located?: Regional Diagnostics, LLC's practice location on file with NPPES is 1228 W Belmont Ave, Chicago, IL 60657-3207.
What is Regional Diagnostics, LLC's phone number?: The practice phone number listed in the NPPES registry for Regional Diagnostics, LLC is (773) 248-7100.
Who is the authorized official for Regional Diagnostics, LLC?: The authorized official listed on Regional Diagnostics, LLC's NPPES record is Ron Clark, C.f.o.. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
Is Regional Diagnostics, LLC's NPI active?: Yes — Regional Diagnostics, LLC's NPI (1003804311) is active in the NPPES registry as of the last update on 2020-08-22.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions